Apparatus for smoothing the paper web in paper-making machines.



No- 828,149. PATENTED'AUG. 7, 1906.

0. TITTEL. I

APPARATUS FOR SMOOTHING THEPAPER WEB IN PAPER MAKINGYMAGHINES.

APPLIGATIO N FILED FEB. 14. 1906.

UNITED STATES. PATENT OFFICE.

- OLEMENSIIITTEL, OF G'RATWEIN. AUSTRIA-HUNGARY. I APPARATllS FORSMOOTHING THE PAPER WEB IN PAPER-MAKING MACHINES;

To all whom, it may concern:

Be it known that I, CLEMENS TITTEL, a subject of the German Emperor,residing at Gratwein, near Graz, Styria, Austria-Hungary, have inventedcertain new and useful Improvements in Apparatus for Smoothing the PaperWeb in Paper-Making Machines, of which the following 1s a specification.

'As is known, in paper-making machines the paper web comes from the lastwet-press with a-perfectly-closed surface; but on passing the firstdrying-cylinder it has already lost this closed surface, because theclosed pores are opened again by'the evaporated moisture. he aperconsequently becomes rough, which is etrimental to many printinoperations. It'has hitherto been endeavore to obviate this disadvantageb the provision of the so-called damp-smoot g apparatus in front of thelast drying apparatus; but as the paper is already too dry at this partof the machine the pores only close very impergectly, and the paperreceives a slaty sur ace.

The present invention relates to apparatus whereby the opening of thepores during the passage of the paper web through the entire dryingapparatus isprevented, all roughness beingdone away with as soon as itis produced.

This apparatus consists, mainly,in the rovision of two or more chilledcast-iron ro lers brightly polished or provided with a bright of copperor bronze, which are arrange behin each dryin -cylinder of the firstgroup, The paper we is led between these pairs of rollers, which may beheated,

if required, and which are pressed against each other by screw-spindles.

This smoothing a paratus. for smoothing the paper web, whic isindependent of the Specification of Letters Patent.

Application filed February 14, 1906! Serial No. 301,079;

Patented Aug. 7, i906.

drying-cylinders, can be arranged se aratel behind each drying-cylinderof the st cy inder group.

The accom anying drawingshows the arran ement of three such smoothingapparatus P P above the first three drying-cyh inders of a paper-makingmachine.

These smoothing apparatus consist of two or more chilled-cast-ironrollers O and U, brightly polished or provided with a bright coating ofcopper or bronze,'which may be heated, these rollers having theirjournals mounted in cast-iron frames S. The upper rollers O areadjustable b means of screwspindles p and hand-whee s h for regulating te degree of smoothin Each of the-lower rollers carries a toothe wheeland receives a prescribed motion from the driving-wheel z, gearingtherewith, and the conical belt puley k.

The paper web'b before passing into the smoothm apparatus is led over astretchingroller (1, tie bearings l of which are adjustable both in thehorizontal and the vertical direction and whose object is to preventcreases on the paper entering the apparatus.

I claim- In an apparatus of the class set forth, the combination of adrying-cylinder and heated smoothing-rollers having brightlyolishedsurfaces held in contact with each ot er, the rolilers beingdisposedbehind the drying-cyl- 1n er.

In-testimony whereof I have hereunto set my hand in presence of twosubscribing witnesses.

CLEMENS TITTELJ Witnesses:

Josnr RU'BRASOH ALVESTO S. Boson..-

